The climax on the tower ends too abruptly. Well, it is in the manga, but in the anime it really left no impact--no wondering, no confusion, nothing. Only a short, "what happened?" from the characters and then that's it. I guess because of the rushed pacing. Silat and the Kushan also went very fast. A considerable amount of time is instead dedicated to Nina, which might have gained significant development, but not enough for us to care in the anime. Last, the soundtrack doesn't fit the scene. The music director did a bad job here--again.
We're going to have next season in Spring. I hope the studio learned a lot from their first experiment here.